Description
Product Overview
The Laars Heating Systems RE0015900 is a manual reset (M/R) high limit aquastat designed to protect hydronic boilers and heating systems from dangerous overtemperature conditions. With a wide operating range of 100–225°F, this aquastat provides reliable, precise high-limit protection across a broad spectrum of residential and light commercial boiler applications.
Key Features
- Manual reset (M/R) operation for positive, deliberate restart after a high-limit event
- Temperature sensing range: 100°F to 225°F
- Designed as a high limit safety control to shut down the boiler upon reaching the set temperature
- OEM-quality replacement part engineered for Laars heating systems
- Durable construction for long-term reliability in demanding hydronic environments
Application
- Hydronic boiler high-limit protection
- Compatible with Laars boiler systems requiring OEM aquastat replacement
- Suitable for residential and light commercial heating systems
Why Choose the Laars RE0015900
The manual reset design ensures that after a high-limit trip, the system cannot restart automatically — requiring a technician or operator to physically reset the control. This added layer of safety helps prevent repeated overtemperature cycling and protects both equipment and occupants. Sourcing a genuine Laars OEM part guarantees proper fit, function, and performance within your Laars heating system.







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